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PROBLEM
Rotor not turning.
Slow feeding.
Chipper requires excessive
power or stalls.
High power required
Vibration while running.
Yokes
Drive belts slipping or smoking.
Troubleshooting
CAUSE
Obstructed discharge.
Rotor plugged.
Broken shear pin.
Knives are dull.
Blade angle wrong,
improper angle.
Discharge hood clogged.
Obstructed discharge.
Rotor plugged.
Green material will not
discharge.
Dull knives.
Plugged rotor.
Dull knives.
Drive line vibration.
Loose or worn belts.
Plugged rotor.
13
SOLUTION
Shut down and clear debris.
Clear rotor.
Replace shear pin.
Sharpen knives.
Re-sharpen knives to
specified angle.
Clear discharge hood.
Clear discharge hood.
Clear rotor.
Allow material to dry or
alternately feed in dry
material.
Sharpen knives.
Clear rotor.
Sharpen knives.
Check drive line phasing.
must be aligned.
Check rotor to see if it wobbles.
Check to see if rotor is
assembled correctly.
Adjust or replace belts.
Clear rotor.
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